from django.core.files.storage import Storage




class MyStorage(Storage):

    def _open(self, name, mode='rb'):
        """Retrieve the specified file from storage."""
        pass

    def _save(self, name, content, max_length=None):
        pass

    def exists(self, name):
        return False

    def url(self,name):

        return 'http://192.168.136.128:8888/'+name